Why does slowing down audio sometimes deepen voices, but sometimes not?
In: Technology
I think that is a common misconception, slowing audio should not deepen anything, it just changes speed. if there is deepening, its the pitch that is changing. Some software change both when it says its changing speed, yet if you select speed only, you will notice it sounds the same but slower
Changing tempo changes pitch (of all sounds, not just speech) but some methods have processes to correct pitch.
Sound being deep or high pitched is based on the frequency of the sound. When you slow down a recording it basically also slows down the frequency of the waves that make the sound and so it gets deeper. I have never experienced a situation where slowing down a recording didn’t deepen the sound so I can’t speak to what is going on there.
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